Mscorlib not found when creating Xamarin.Android project with CakeBuild

Question

I am in the process of integrating the Xamarin Android project into our CI pipeline. We are already using CakeBuild for other .NET projects, so I also wanted to use it here.

The problem is that when I try to build using Cake, I always get the following error message:

C: \ Program Files (x86) \ MSBuild \ Xamarin \ Android \ Xamarin.Android.Common.targets (406.2): ​​error: failed to load assembly 'mscorlib, Version = 0.0.0.0, Culture = neutral, PublicKeyToken =' . Perhaps this does not exist in the Mono profile for Android? [C: \ [MyProject] .csproj]

Working with buildings in Visual Studio 2015 and using the Visual Studio Developer Command Prompt command line. Because of this, I thought this had something to do with environment variables that are set in VS and through the VS command line. So I made a small batch file:

call "%vs140comntools%vsvars32.bat" Powershell.exe ./build.ps1 -Target Build 

But I get the same error. There is no explicit reference to mscorlib in my projects.

The cake build task is as follows:

 Task("Build") .IsDependentOn("Restore-NuGet-Packages") .Does(() => { var settings = new MSBuildSettings() { ArgumentCustomization = args => { args = args.Append("/t:PackageForAndroid"); args = args.Append("/p:TargetFrameworkRootPath=\"C:\\Program Files (x86)\\Reference Assemblies\\Microsoft\\Framework\""); return args; }, Verbosity = Verbosity.Normal }; settings.SetConfiguration(configuration); MSBuild("../myproject.csproj", settings); }); 

I had to add TargetFrameworkRootPath because it will not find referenced assemblies unless I install it explicitly.

I'm wondering what else needs to be done to replicate the VS / VS command-line build environment.

Answer 1

Are you targeting .NET Standard or are you still using PCL? What does the detailed output look like? It should give you the MSBuild command that is being executed.

call "%vs140comntools%vsvars32.bat" Powershell.exe ./build.ps1 -Target Build -Verbosity Diagnostic